Creates `reflectors`, as a meta-meta feature that enables dynamic selection of a "mirror system".

reflectable/test/mock_tests/check_literal_transform_test.dart

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library reflectable.check_literal_transform_test;
 
 /// Test the literal output of the transformation for a few simple cases.
 
 import "package:reflectable/test_transform.dart";
 import "package:reflectable/transformer.dart";
@@ skipping 46 matching lines @@
 import "package:reflectable/src/reflectable_transformer_based.dart" as r;
 import "package:reflectable/reflectable.dart" show isTransformed;
 
 export "main_reflectable_original_main.dart" hide main;
 
 main() {
   _initializeReflectable();
   return original.main();
 }
 
-final _data = {const prefix0.MyReflectable(): new r.ReflectorData(<m.ClassMirror>[new r.ClassMirrorImpl(r"A", r".A", 0, const prefix0.MyReflectable(), <int>[-1], <int>[], <int>[], -1, {}, {}, {r"": () => new prefix0.A()}, -1, 0, <int>[], null)], <m.DeclarationMirror>[new r.MethodMirrorImpl(r"", 64, 0, -1, prefix0.A, <int>[], const prefix0.MyReflectable(), null)], <m.ParameterMirror>[], <Type>[prefix0.A], {}, {}, null)};
+final _data = {const prefix0.MyReflectable(): new r.ReflectorData(<m.ClassMirror>[new r.ClassMirrorImpl(r"A", r".A", 7, 0, const prefix0.MyReflectable(), <int>[-1], <int>[], <int>[], -1, {}, {}, {r"": () => new prefix0.A()}, -1, 0, <int>[], null)], <m.DeclarationMirror>[new r.MethodMirrorImpl(r"", 64, 0, -1, prefix0.A, <int>[], const prefix0.MyReflectable(), null)], <m.ParameterMirror>[], <Type>[prefix0.A], {}, {}, null)};
 
 _initializeReflectable() {
   if (!isTransformed) {
     throw new UnsupportedError(
         "The transformed code is running with the untransformed "
         "reflectable package. Remember to set your package-root to "
         "'build/.../packages'.");
   }
   r.data = _data;
 }
@@ skipping 27 matching lines @@
     // instead of comparing Maps.
     expect(value, expectedOutputs[key]);
   });
 }
 
 main() async {
   test("Check transforms", () async {
     await checkTransform(useReflect);
   });
 }